package wh.jf.observer;

public class HexaObserver extends Observer {
    public HexaObserver(Subject subject) {
        this.subject =subject;
        this.subject.attach(this);
    }
    @Override
    public void update() {
        System.out.println( "Hex String: "
                + Integer.toHexString( subject.getState() ).toUpperCase() );
    }
}
